I came across this website:https://www.exploring-economics.com which is going to be used a lot by this blog in future.
It has this wonderful resource page on history of economic thought with this superb picture summing the core of most schools:
This is amazing!
As they say: A picture is worth thousand words and here it is worth much more than just thousand words.
These schools of thought are compared across different questions and issues. THese together should help develop comparative perspectives on these schools.
There are videos and lectures on the site as well. Do take a look..